Reaction: 5,10-methylenetetrahydrofolate + glycine + H2O = tetrahydrofolate + L-serine
For diagram of reaction click here.
Other name(s): serine aldolase; threonine aldolase; serine hydroxymethylase; serine hydroxymethyltransferase; allothreonine aldolase; L-serine hydroxymethyltransferase; L-threonine aldolase; serine hydroxymethyltransferase; serine transhydroxymethylase
Systematic name: 5,10-methylenetetrahydrofolate:glycine hydroxymethyltransferase
Comments: A pyridoxal-phosphate protein. Also catalyses the reaction of glycine with acetaldehyde to form L-threonine, and with 4-trimethylammoniobutanal to form 3-hydroxy-N6,N6,N6-trimethyl-L-lysine.
Links to other databases: BRENDA, EXPASY, GTD, KEGG, Metacyc, PDB, CAS registry number: 9029-83-8
References:
1. Akhtar, M. and El-Obeid, H.A. Inactivation of serine transhydroxymethylase and threonine aldolase activities. Biochim. Biophys. Acta 258 (1972) 791-799. [PMID: 5017703]
2. Blakley, R.L. A spectrophotometric study of the reaction catalysed by serine transhydroxymethylase. Biochem. J. 77 (1960) 459-465.
3. Fujioka, M. Purification and properties of serine hydroxymethylase from soluble and mitochondrial fractions of rabbit liver. Biochim. Biophys. Acta 185 (1969) 338-349. [PMID: 5808700]
4. Kumagai, H., Nagate, T., Yoshida, H. and Yamada, H. Threonine aldolase from Candida humicola. II. Purification, crystallization and properties. Biochim. Biophys. Acta 258 (1972) 779-790. [PMID: 5017702]
5. Schirch, L.V. and Gross, T. Serine transhydroxymethylase. Identification as the threonine and allothreonine aldolases. J. Biol. Chem. 243 (1968) 5651-5655. [PMID: 5699057]